Harold b



Feb. 2o, 1923.

H. B. BARNES ELECTRIC SWITCH Original Filed vDec HAAoLo 3. BAG/V55, i QL M# @wg/mung" Reissued Feb. 20, 1923.

ELEoTRIc SWITCH.

original No. 1,287,829; date-d Decanter. .17, 1ers', serial No; vlsaainea Fbruaryanlew.

forreissue filed October 23, 1919.'I SerialNo. 332,843'.

To all' whom t 'may concer/1t.'

Be it known .thutL HAROLDr RiBaRNEs, a citizen of the' `United States, `,and residing at Denver', in the countylo'f Denver,' Coloradohavenvented' .the new and useful Iniproverner'iti-l in rElectric Switches; of which vthe following-is a specification, v I

This invention relates to electric switches and more;A particularly toiswitches having audible indicating means of the ,character described in the copending. application vv.filed otevenf date herewith and bea.ringV Serial m5332542; led October 23, 1919.1`

In the application referred to; is described val Sfwitch in,wvhi ch the on and offI positions are indicated audilily.y In the'specific embodiments described brief. audible sounds aref produced: by reedswhich are vibrated` either, freely; or restraine d In practice' a bell note is` desirablefas the distinctive ,note or indication persists andi continues.' anI yappreciable length oftimeafte'r the' operation of thel switch andi, is, therefore, much better than any sound indicationwhich*A lastsonlj fora brief-interval. j l

One ofthe objects oi this. invention, therefore,` isto provide an' electric switch of the character described, which has a gong mounted' on the base and a striker adapted upon' operation of the; manipulative element to sound the gong-or bell when the switch contactsare shifted.

Another object is topr'ovidey a switch of the rcharacter described, in which the gong or bell provides-.a cover or casing for the vswitch contacts :and thestrikerf.

An`other vobject is to provide a' switch of the character described in which a series of A gongs or bellsisA provided` which' gongs or bellsnare ofy 4different,pitches or tones corresponding t'o the different positions of the switch, .such as for ,oiil and' .on7 positions.

Another object is to improver the cons'truction of.tl1e electric switch V of the charactefr descr-. ibed having#` audible r.indicating 1i1`e`ein'is .whereby the parts. will be veffectively insulatedand-fonstructedin a simple and fC Ilflllil Fuif-lier Objects?Willjappeaipfroni .thierdetail description gtafk ,1n connection with the accompanying demini-incubi@ istat Peepetve viewiof an eleom'ei switchenit-aiyaiig.4 this' intentie-n;

- Appnation Fig-ure 2- isl a..longitudinalverticallsec tionv taken onthe line 2 2;FigureE 3;

Figure 2,:showing the cover and insulation removed; 1 i M Figure 4 is asectio'nfon the'line; Llf .4, Figure 3, with sornef of the-,parts removedj; Fglle 5 S` a detail persi, ctiveview of Vthe striker and theginsulatioif; and@ Figure 6 is lview similar. to' I Tigure'g 2, but showing another embodiment-of this invention.

Referring Vto the and more' particularly to] Figures 1. to' 5 inclusive', l deisignatesthebase of. ajnI ordinary snap switch which is provided with a stem 2 carrying the usual movable Contact element 3 having at-itjsgends contacts which accompanying drawing,

engage vcooperating;stationary contact-velements' 4' on the base. Ihey stem carries the usual spring 25 `which -connects the' stein with the movable 'switch element'asi'siusual in snap; switch constructions. A `button or.

manipulative element has' shank 5 which is threaded on' thetstfeminorderfthetrthe movable Contact element may be lshifted to diiferent positions,` which in this ease. are

the on and"oif.fpositions.j The construe,

v move with the element. Mounted .ontlieinsulatingbase l" isga'base plate 75l, which iis, therefore, insulated from Ithe:metallic parts ranged in the pathvot thetrippiligr posts-'.6 asr the latter rotate with .thefii'ovable-.switch eleiiigmtv in? ther directionofA the arrow, Figits l forated portion 12 terminates in feet 13 after described. form is supported by thel yoke, this gong which -are tapped to receive screws 26 for securing the same to the base. Mounted in the center portion 12 of the yoke is a headed `and threaded sleeve 14. The yoke supports a circular strip of insulating material 15 which rests on the base' and is retained in position by spring fingers 16 mounted on the yoke. The strip of insulating material is perforated as shownat 27 to permit movement therethrough ofthe strikeras herein- The gong 17 of `dished beingperforated to take over the sleeve 14, a rwasher 19 being interposed between the Y yoke and the gong, and the whole beingv sevcured in position by a nut 20 threaded on the sleeve; accordingly the gong ,i's'firmly pin' will become disengaged from the bell held in positionI on the base but free at its outeredgel to permit sounding thereof.

' In the operation of the switch, movement of the button of manipulative element' will cause the switch contacts to move to f off and on positions with a snap. As the movableelement moves from on 7 position, Figure 3, through a right angle, the tripping posts 56 by engagement 'with the end 10 of the bell cranklever 8, will move this bell crank lever in counter-clockwise direction, thereby tensioning the spring 80.v As the switch element, however, moves to off position, the

crank lever, thereby tripping it and causing it under the rtension of its spring to return and cause the striker 9 to engage and sound the gong 17. When the switch is, however, 'moved'to on position., there will be no c sound. Accordingly, in accordance with the embodiment described, there will be a distinctive sound when the switch .movesy to off position but no sound when the switch moves to on position.

l In the embodiment shown in Figure (5, a series of gongs is provided to give distinctive sounds in both on and 01T` positions of the switch and a striker is provided for each gong in order to sound the same for such positions. Accordingly, the usual connecting element 28 attached to the stem 2 moving therewith and with the movable switch element. has mounted. thereon tripping pins 6 which are, however'` arranged on an*V axis at a' right angle to the axis of the tripping pins 6. i Arranged in the base is a bell crank-lever 8 having a hook 10 iu the path of the tripping pins 6', and having a striker 9 adapted to engage and sound 'y aA second gong 17 of larger diameter and longer than the gong 17 and also supported von'the yoke 11. Vconstruction to the correspondingparts here- The parts are similar'in tofore described, and accordinglyare designated'by corresponding reference characters with the prime added. It will be understood that ini view of the different dimensions of the gongs 17 and 17 their sounds will be distinctively different.

The operation of this embodiment will be obvious from kthe illustration of the embodiment heretofore described. eration ofthe u, manipulative element, the gong 17 will be sounded when the switch contacts are moved to off position, while the gong 17 will be sounded when the switch contacts are moved to on position.

As the gong sounds `are distinctively different, the operator can readily determine the shifted position of the switch contacts even though the parts may not be visible.y y

It will thus be seen that the invention accomplishes its objects. An electric switch is During the opprovided which is especially adapted to conobviously much better than 'alsou'nd indication which is briej. i i

It is obvious that various changesimay be madein the Vdetails of construction without departing from the spirit of this invention. It is, therefore, rto be understood that this invention is not to be limited to the specific construction shownand described.

` Having thus described the invention, what is claimed is:

1. An electric switch of the character described, comprising, a base', switch contacts thereon, a manipulative element adapted `to shift saidcontacts, a gong on said base, a striker mounted on said base, and a spring for said striker, a trigger on said elementl adapted to tension and then release said striker to sound the gong when the switch contacts are shifted. I'

2. An electric switch of the character described, comprising, a base, a switchcontact l thereon, a shiftable manipulative element, a

` contact thereon adapted to engage said first Contact, af gong on said base, a striker mounted on said base, and means on said shiftable element adapted'upon movement thereof to operate saidstrike'r'to sound the gong in order to audibly indicate the shifted relation of said' contacts.l ,f

` 3; An electric switch of the character described havig a base. switch'contacts there-1 `on and a manipulative elementadapted lto sliii'tthe` contacts, characterized bythe pro' vision of a series ofgongs on the base, and

means adapted'u'ponoperation of rthe velement to selectively sound said gongs.r` y

4. An electric 'switch of the character described having a base, 'switch contacts therei on and 'a lInaipul'ative elementA adapted' vto shift the contacts, characterized by the provision of a series of gongs von the base, strikers for said gongs, and means adapted upon operation of the element to operate.

said strikers. l

5. An electric switch of the character described having a base, switch cont-acts thereon movable to different selected positions and a manipulative element adapted to shift the contacts, characterized by the provision of a series of gongs of different pitches on the base, and means adapted upon operation of the element to sound a selected gongwhen 7. An electric switch of the character described having a base, switch contacts thereon movable to different selected positions and a manipulative element adapted to open and close the contacts', characterized by the provision of tripping mechanism co-operating with and adapted upon movement of the element tov selectively indicate audibly when the switch contacts are opened or closed.

K shift the contacts, characterized bv the provision of a gong on the base, a striker adapted upon operation of the element to sound the gong when the switch contacts areshifted, and an insulating element between said gong and the contacts. n

, l0. electricl switch of the character described having a base, switch contacts thereon and a manipulative element adapted to shift the contacts. characterized by the provision of a dished gong on the base adapted to form a cover for the contacts and through which the element projects, a striker adaptsuspended therefrom, a

ed upon operation of the element to sound the gong when the switch contacts are shifted, and an insulating element between said gong and the contacts and having a recess for said striker.

l1. In an audible indicating device, the combination with a base, of a supporting yoke mountedvon said base, a rotatable post suspended therefrom, tripping-posts carried thereby, trip-actuated means mounted on said base and adapted to be actuated by said tripping-posts, a bell-cover mounted on said yoke and surrounding mechanism of said device adapted to be struckby said trip-actuating mechanism upon the actuation of said rotatable post.

l2. In an audible indicating device, the combination with a base, of a supporting yoke mounted on said base, a rotatable post. circuit-making means carried by said post, trip-posts mounted on said circuit-making means, tripactuated means mounted on said base adapted to be actuated by said trip-post, abellcover mounted on said yoke and surroundring the mechanism of said switch adapted to be struck by said trip-actuating means upon the actuation of said rotatable post.

13.. In an audible indicating device, the combination with a base, of a supporting yoke mounted on said base, arotatable post suspended therefrom, circuit-making means carried by said post, trip-posts mounted on said circuit-making means, trip-actuated `means mounted on said base adapted to be actuated by said trip-post, an insulating band provided with an orifice surrounding said mechanism and supported by said yoke, a bellV covering mounted on said yoke and surrounding the mechanism of said switch, adapted to be struck by said trip-actuating means upon the actuation of said rotatable post.

14. In an audible indicating device, the combination with a base, of a rotatable post mounted thereon, circuit-making means carried by said post, tripping posts mounted on said circuit-making means, a plate mounted on the base,-a lever pivotally mounted on said plate, one end of the lever provided with a hook and the other with a hammer, and a bell cover mounted upon the base and surrounding the upper part of the switch, adapted to be struck by saidv hammer upon the actuation of the rotatable post and the consequent tripping of the hook on said lever by said tripping post.

Signed at Denver, in the county of Denver, State of Colorado, this 23rd day of aug., 1919.

HAROLD B. BARNES. 

